@article{ref1,
title="An electroencephalographic study of head injury with special reference to frequency analysis",
journal="Psychiatria et Neurologia Japonica",
year="1969",
author="Koizumi, M.",
volume="71",
number="4",
pages="313-331",
abstract="<p>[Abstract unavailable]</p><p>Language: ja</p>",
language="ja",
issn="0033-2658",
doi="",
url="http://dx.doi.org/"
}